Table 3. Electronic Absorption and Emission Spectral Data of the Complexes.
| absorption spectral dataa | emission spectral dataa |
||
|---|---|---|---|
| complex | λmax, nm (ε, M–1 cm–1) | λF, nm [ΦF × 10–3]c | life time (τ) |
| C1 | 451(400), 294 (5940), 237b, 211 (21,970) | 518 [8.6] | τ1 = 0.26 ns, τ2 = 4.10 ns |
| C2 | 449 (530), 282 (9190), 239b, 209 (22,770) | 558 [6.5] | τ1 = 1.75 ns |
| C3 | 429 (490), 289 (7780), 255b, 220 (28,780) | 486 [17.3] | τ1 = 0.36 ns, τ2 = 5.02 ns |
a
In methanol.
b
Shoulder.
c
Quantum yield was calculated with reference to [Ru(bpy)3]2+ (ΦF = 0.09).